Mordecai Joseph Leiner of Izbica was a unique thinker in the history of Hasidism with a highly personal vision of Judaism. His teachings, partially derived from the Przysucha-Kotsk school, adopted the concept of absolute divine providence as a cornerstone. He also reinterpreted the Lurianic concept of tiqqun, originally intended as a cosmological concept, to apply to the individual, creating a new path to spiritual self-perfection.

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